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Projects

Development of a Coupled Hydrodynamic-Biogeochemic...

Harmful Algal Blooms (HABs) in the Chesapeake Bay, which threaten human and ecosystem health, are more frequent and severe than decades ago. We are developing a new model that incorporates ...

Differences in the Toxicity of the Alga Gambierdis...

The goal of this project is to advance our understanding of toxins produced by different species of the alga Gambierdiscus and how these toxins and their varieties move through the ...

DinoSHIELD: A Slow-release Natural Algicide Produc...

We will field test an environmentally neutral method to control harmful algal blooms. Our work will provide managers with information on the applications of a natural algicide as an environmentally ...

Do Harmful Algal Bloom Migrations Across Carbonate...

This project will evaluate whether harmful algal bloom (HAB) species may have a competitive advantage over other phytoplankton in response to coastal acidification and climate changes occurring in northeast US ...

Early Warning for Amnesic Shellfish Poisoning in t...

This project will help mitigate HAB-related disruptions to highly productive Gulf of Maine shellfisheries with new knowledge, observing technology advances, and enhanced capacity to deliver early warnings and forecasts of ...

ECOHAB: GOMTOX: Dynamics of Alexandrium fundyense ...

Extensive shellfish resources in the Gulf of Maine are frequently contaminated with toxins produced by the red tide dinoflagellate Alexandrium fundyense. Shellfish harvesting must be closed to protect public health ...

Ecophysiology and Toxicity of the Toxic Alga Heter...

We are identifying toxins and environmental factors causing fish-killing blooms by the alga Heterosigma akashiwo in Puget Sound. We develop tools to improve monitoring, early warning, and mitigation to prevent ...

Effects and Discovery of Chronic Domoic Acid Expos...

Domoic acid, a naturally occurring marine neurotoxin, threatens the health of marine mammals, seabirds, and humans via severe and long-term yet low-level exposure through the food web. Researchers discovered a ...

Emerging Algal Toxins in the California Current Sy...

Surveys in California have highlighted the occurrence of HAB toxins in estuarine waters and shellfish, but there is concern that current monitoring approaches under-report the threats. There is a need ...

Employing a Novel Molecular Toolbox for Rapid, Sen...

The diatom Pseudo-nitzschia produces the neurotoxin domoic acid, which can impact both humans and marine wildlife when consumed. This project seeks to build and implement a diverse molecular toolbox to ...

News

NCCOS Awards $16.1M for Harmful Algal Bloom Resear...

Cyanobacteria shares some properties with algae and are found naturally in lakes, streams, ponds and other surface waters. (EPA) NCCOS is announcing $16.1 million in funding for harmful algal bloom ...

Integrative Harmful Algae Monitoring Strategy Deve...

San Elijo Lagoon, in San Diego County. Credit: Carey Nagoda. Many coastal states throughout the U.S. have observed negative impacts in marine and estuarine environments due to cyanobacteria toxins (cyanotoxins) ...

NCCOS Funds Response to Marine Mammal Mortality Ev...

NOAA’s National Centers for Coastal Ocean Science provided a harmful algal bloom (HAB) Event Response award of $4,520 to Scripps Institution of Oceanography, Southern California Coastal Ocean Observing System (SCCOOS), ...

Southeast Alaska Tribes Trained to Detect Harmful ...

Southeast Alaska tribal members participating in HAB workshop. NCCOS’s Phytoplankton Monitoring Network trained over 40 environmental tribal personnel from Southeast Alaska in toxic phytoplankton sampling and identification. This workshop took ...

NOAA Announces FY23 Notice of Funding Opportunity ...

Western Lake Erie True Color Image of a harmful algal bloom derived from Ocean and Land Color Instrument (OLCI) sensor on Copernicus Sentinel-b obtained from EUMETSAT. NOAA’s National Centers for ...

NCCOS Assists Response to Harmful Algal Bloom in t...

Dead sturgeon observed floating during USGS field sampling in South Bay. NOAA’s National Centers for Coastal Ocean Science (NCCOS) provided a Harmful Algal Bloom (HAB) Event Response award of $15,420 ...

NCCOS Assists Response to Ongoing HAB in the Lower...

NOAA’s National Centers for Coastal Ocean Science (NCCOS) provided a Harmful Algal Bloom (HAB) Event Response award of $6,820 to the Virginia Institute of Marine Science (VIMS) to respond to ...

NCCOS’ PMN Spanish Language Translation Used in In...

Innoceana, an international NGO based in Los Angeles with sites in Costa Rica, Spain and Thailand, partnered with the Phytoplankton Monitoring Network (PMN) to include phytoplankton sampling in their existing ...

New Publication Evaluates Chlorophyll-a Algorithms...

Map of the study area showing each monitoring station from the Chesapeake Bay Program used in this study. A new scientific paper describes methods for evaluating the efficacy of five ...

Products

Maps, Tools & Applications

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Data & Publications

Effects of inorganic and organic nitrogen and phosphorus on the growth and toxicity of two Alexandrium species from Hong Kong

The effects of three nitrogen (N) and two phosphorus (P) inorganic and organic forms on the growth, toxin content and composition, toxin production, and chemical composition of Alexandrium catenella and Alexandrium tamarense isolated from coastal waters of Hong Kong were ...

Effects of temperature and salinity on the growth of Alexandrium (Dinophyceae) isolates from the Salish Sea

Toxin-producing blooms of dinoflagellates in the genus Alexandrium have plagued the inhabitants of the Salish Sea for centuries. Yet the environmental conditions that promote accelerated growth of this organism, a producer of paralytic shellfish toxins, is lacking. This study quantitatively ...

Environmental controls, oceanography and population dynamics of pathogens and harmful algal blooms: Connecting sources to human exposure

Coupled physical-biological models are capable of linking the complex interactions between environmental factors and physical hydrodynamics to simulate the growth, toxicity and transport of infectious pathogens and harmful algal blooms (HABs). Such simulations can be used to assess and predict ...

Environmental Monitors on Lobster Traps (eMOLT): long-term observations of New England's bottom-water temperatures

Nearly one hundred New England lobstermen have installed temperature sensors on their traps to record hourly values at fixed locations since 2001. These moorings are distributed primarily along the shelf edge in the northern Mid-Atlantic Bight and along the entire ...

Evaluation of Rapid, Early Warning Approaches to Track Shellfish Toxins Associated with Dinophysis and Alexandrium Blooms

Marine biotoxin-contaminated seafood has caused thousands of poisonings worldwide this century. Given these threats, there is an increasing need for improved technologies that can be easily integrated into coastal monitoring programs. This study evaluates approaches for monitoring toxins associated with ...

Factors regulating excystment of Alexandrium in Puget Sound, WA, USA

Factors regulating excystment of a toxic dinoflagellate in the genus Alexandrium were investigated in cysts from Puget Sound, Washington State, USA. Experiments were carried out in the laboratory using cysts collected from benthic seedbeds to determine if excystment is controlled ...

First report of an Ansanella granifera bloom associated with eutrophication in Cuban waters, Caribbean region

Harmful Algal Blooms (HABs) have been associated with fish and shellfish kills, ecosystem damage, human health impacts, and significant economic losses to the aquaculture and tourist industries throughout the world. The increase of HABs in recent years is generally related ...

Harmful Algae and Their Potential Impacts on Desalination Operations off Southern California

Seawater desalination by reverse osmosis (RO) is a reliable method for augmenting drinking water supplies. In recent years, the number and size of these water projects have increased dramatically. As freshwater resources become limited due to global climate change, rising ...

Harmful Algal Bloom Forecasting Branch Ocean Color Satellite Imagery Processing Guidelines

The Harmful Algal Bloom - Forecasting Branch (HAB-FB) is a research group within the National Oceanic and Atmospheric Administration (NOAA), National Centers for Coastal Ocean Science (NCCOS) tasked with forecasting and monitoring HABs. One of the more effective ways to ...

Harmful Algal Blooms along the North American West Coast Region: History, trends, causes, and impacts

Along the Pacific coast of North America, from Alaska to Mexico, harmful algal blooms (HABs) have caused losses to natural resources and coastal economies, and have resulted in human sicknesses and deaths for decades. Recent reports indicate a possible increase ...

General Pages

PCMHAB

NCCOS projects identify and evaluate a range of methods to prevent, control or mitigate blooms of harmful algae in ways that are safe for the environment.After more than 10 years ...

Phytoplankton Monitoring Network (PMN)

The National Phytoplankton Monitoring Network (PMN) is a community-based network of volunteers monitoring marine phytoplankton and harmful algal blooms (HABs). PMN recognizes the interrelationships between humans and coastal ecosystems while ...

Response and Readiness for HAB Events

Every year many coastal states experience HABs that produce dangerous levels of natural toxins. This forces public health officials to close valuable commercial and recreational shellfish harvests and warn people ...

Satellite Imagery

Current Lake Erie Sentinel-3 a and b Composited Satellite Imagery from the Ocean and Land Color Imager (OLCI) as of 2023-10-31 showing bloom location and extent. Image credit: The images ...

Tampa Bay

Harmful Algal Bloom Monitoring System: Southwest FloridaThis page shows algal blooms in Tampa Bay. Blooms of some different types of algae may be present. In lower Tampa Bay, Karenia brevis ...

Toxin Detection Technologies

NCCOS uses three detection strategies to accurately measure algal toxins despite the unique challenges. Our scientists develop biochemical methods largely for sensor applications. We develop and validate chemical methods notably ...
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NOAA Internship Opportunities

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